Husqvarna P-ZT 54 User manual

P-ZT54 / 996613402
Parts Manual
Please read the operator’s manual carefully and make sure you
understand the instructions before using the machine.
Gasoline containing up to 10% ethanol (E10) is
acceptable for use in this machine.The use of any
gasoline exceeding 10% ethanol (E10) will void
the product warranty.

©2012 All rights reserved.
Orangeburg, SC Printed in U.S.A.
When you need spare parts or support in service
questions, warranty issues, etc., please consult
the following professional:
Manufacturing Number
The machine’s manufacturing number can be found on
the printed plate affixed to the engine compartment.
Stated on the plate, from the top are:
• The machine’s type designation (I.D.).
• The manufacturer’s type number (Model).
• The machine’s serial number (Serial no.)
Please have the type designation and serial number
available when ordering spare parts.
This manual belongs to the machine with the
manufacturing number:
Engine Transmission
The engine’s manufacturing number is stamped on
one of the valve covers.
The plate states:
• The engine’s model.
• The engine’s type.
• Code
Please have these available when ordering spare
parts.
The wheel motors and hydrostatic pumps have a
barcode decal affixed at the rear.
Accessories Available
DFS Collection System ....................967 004601
Blower for DFS ................................966 407101
Mulch Kit ..........................................966 050401

CONTENTS
NOTE: ALL FASTENERS ARE GRADE 5 UNLESS OTHERWISE SPECIFIED.
FRAME ..................................................................... 4
ENGINE PLATE ........................................................ 6
STEERING ............................................................... 8
IGNITION SYSTEM ................................................ 10
PARKING BRAKE .................................................. 12
HYDRAULIC PUMP-MOTOR ................................. 14
HYDRAULIC FRAME ............................................. 16
WHEELS AND TIRES ............................................ 18
MOWER LIFT / DECK LIFT .................................... 20
MOWING DECK / CUTTING DECK ....................... 22
SEAT ...................................................................... 24
PROTECTION FRAME .......................................... 28

4
FRAME
7
3
2
4
9
10
11
6
5
18
16
14
12
8
1
13
20
19
29
15
28
32
26
35
25
31
23
17
21
22
24
36
33
34
29 27
27
30
30
29
35
34
33
37
33
32
35
34

5
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
FRAME
1.. 574 482801 ...... 1 ...FRAME w/ SFTY DECAL ORG
2.. 576 701302 ...... 1 . . FLOOR PAN ORG
3.. 522 738902 ...... 1 . . BUMPER, REAR ORG
4.. 576 701402 ...... 1 . . PLATE, SKID GRY
5.. 574 433002 ...... 1 . . GUARD, REAR GRY
6.. 574 215702 ...... 1 . . FOOTREST ORG
7.. 576 701502 ...... 1 . . COVER, FAN RT BLK
8.. 576 701602 ...... 1 . . COVER, FAN LT BLK
9.. 576 701702 ...... 1 . . COVER, CENTER BLK
10.. 510 083201 ...... 4 . . MOUNT, F/F INSERT
11.. 529 279603 ...... 1 . . MOUNT, TANK RT RR
12.. 529 279703 ...... 1 . . MOUNT, TANK LT RR
13.. 529 279903 ...... 1 . . MOUNT, TANK RT FRT
14.. 529 280003 ...... 1 . . MOUNT, TANK LT FRT
15.. 576 453602 ...... 2 . . MOUNT, TANK BLK
16.. 510 040301 ...... 2 . . BRACKET, REST MOUNT
17.. 539 102845 ...... 4 . . SPRING, TANK MOUNT
18.. 575 811501 ...... 2 . . BUMPER, ¼-20 STUD 3/8”
19.. 539 102502 ...... 4 . . STUD, FUEL TANK
20.. 539 109867 ...... 1 . . CLAMP, DOUBLE TUBE
21.. 539 104763 ...... 1 . . RETAINER, U TYPE
22.. 539 990072 ...... 8 . . HCS ¼-20 X 5/8
23.. 525 612801 ...... 4 . . HHFS 3/8-16 x 1 HEX FLG
24.. 574 233801 ...... 2 . . HHFS 5/16-18 x 2¼ HEX FLG
25.. 539 131780 ...... 2 . . HHFS 5/16-18 x 3¾ HEX FLG
26.. 525 544001 ...... 2 . . HHFS 5/16-18 x 1¼ TPBLT
27.. 525 464701 ...... 7 . . HHFS 5/16-18 x ¾ HEX FLG
28.. 539 100145 ...... 2 . . RHSNB 3/8-16 x 2
29.. 539 113226 .... 11 . . BOLT 5/16-18 x 1 THD FRM
30.. 539 990858 ...... 6 . . SCREW 5/16-18 x ½ SLF TAP
31.. 539 111028 ...... 2 . . NUTSERT 5/16-18
32.. 521 996501 ...... 2 . . NUT 3/8-16 HEX FLG NYLOC
33.. 539 108120 .... 10 . . NUT ¼-20 HEX THIN NYLOC
34.. 539 112899 .... 14 . . NUT 5/16-18 HEX FLG NYLOC
35.. 539 109600 ...... 8 . . WASHER 5/16 DISC SPRING
36.. 539 990055 ...... 4 . . WASHER ¼ SAE FLAT
37.. 539 990188 ...... 4 . . WASHER 5/16 SAE FLAT

6
ENGINE PLATE
1
26
11
24
Torque to 50-60 Ft-Lbs
14
22
13
3
17
12
9
7
10
4
6
15
16
8
19
18
30
5
25
23
2
20
25
26
29
27
28
21
32
33
28
31
27

7
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
ENGINE PLATE
1.. 510 004602 ...... 1 . . PLATE, ENGINE BLK
2.. 510 019801 ...... 1 . . PULLEY, ENGINE
3.. 525 750201 ...... 1 . . MUFFLER
4.. 539 113437 ...... 1 . . CLUTCH, GT 3.5
5.. 522 676702 ...... 1 . . STOP, CLUTCH
6.. 539 105526 ...... 1 . . FUEL LINE 18"
7.. 539 912222 ...... 2 . . CLAMP
8.. 539 119680 ...... 1 . . ADAPTOR, OIL DRAIN
9.. 505 280001 ...... 1 . . TIE WRAP w/ CLIP
10.. 539 118911 ...... 1 . . PIPE 3/8 NPT x 3"
11.. 539 105072 ...... 1 . . ELBOW 90O
12.. 522 837001 ...... 1 . . PLUG 3/8 NPTF DRAIN
13.. 539 910210 ...... 1 . . KEY ¼ SQ x 2
14.. 539 105308 ...... 1 . . KEY ¼ SQ x 1
15.. 539 109618 ...... 1 . . O-RING
16.. 539 101714 ...... 1 . . SOLENOID
17.. 539 105409 ...... 1 . . GROUND WIRE
18.. 539 102757 ...... 1 . . CABLE, POSITIVE
19.. 539 102759 ...... 2 . . INSULATOR
20.. 525 313901 ...... 1 . . SPACER
21.. 539 104867 ...... 1 . . HCS 7/16-14 x 1¼ HEX NYLOC
22.. 539 990072 ...... 2 . . HCS ¼-20 x 5/8
23.. 539 990563 ...... 4 . . HCS 3/8-16 x 1 HEX NYLOC
24.. 539 100141 ...... 1 . . HCS 7/16-20 x 1½ HEX NYLOC
25.. 539 990208 ...... 4 . . RHSNB 5/16-18 x 1
26.. 574 233801 ...... 3 . . HHFS 5/16-18 x 2¼ HEX FLG
27.. 539 108120 ...... 5 . . NUT ¼-20 HEX THIN NYLOC
28.. 539 112899 ...... 8 . . NUT 5/16-18 HEX FLG NYLOC
29.. 539 102582 ...... 1 . . NUT 7/16-14 HEX WHIZ LK
30.. 539 125626 ...... 1 . . WASHER, BLADE
31.. 539 102593 ...... 4 . . WASHER 3/8 SPRING
32.. 539 990053 ...... 1 . . WASHER ¼ INT TOOTH LK
33.. 539 990247 ...... 1 . . WASHER 7/16 SLW
NOT SHOWN
525 554201 ...... 1 . . ENGINE HARNESS, KAW

8
STEERING
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
19
20
21
22
23
24
25
26
27
29
30
31
32
33
34
35
36
38
39
18
37
39
30
30
28
33
34
34
33

9
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
STEERING
1.. 577 327702 ...... 1 . . FRAME, SEAT MOUNT ORG
2.. 577 251701 ...... 2 . . BRACKET, CONTROL
3.. 577 265801 ...... 2 . . BRACKET, DAMPENER
4.. 574 269401 ...... 2 . . LEVER, MOTION
5.. 577 042403 ...... 1 . . LEVER, w/ GRIP, RT
577 042303 ...... 1 . . LEVER, w/ GRIP, LT
6.. 576 140302 ...... 2 . . LEVER, CONTROL
7.. 539 130894 ...... 2 . . GRIP, LEVER
8.. 539 020035 ...... 1 . . SPRING
9.. 576 850301 ...... 1 . . SPRING
10.. 539 102845 ...... 1 . . SPRING
11.. 532 109553 ...... 2 . . SWITCH
12.. 539 113792 ...... 1 . . SWITCH, BRAKE (3-POLE)
13.. 516 020301 ...... 2 . . DAMPENER ASSY
14.. 577 251801 ...... 2 . . BLOCK, TRACKING
15.. 539 131519 ...... 2 . . PLATE, TAPPED
16.. 575 811501 ...... 2 . . BUMPER
17.. 539 131518 ...... 4 . . BEARING, FLANGE
18.. 511 594901 ...... 1 . . BUSHING ¼ FLANGE
19.. 511 595001 ...... 1 . . LINK, SWITCH
20.. 539 110607 ...... 2 . . BALL STUD 10MM
21.. 577 252401 ...... 2 . . SPACER, PIVOT
22.. 539 131799 ...... 1 . . KNOB
23.. 522 849702 ...... 4 . . MOUNT, BLK
24.. 539 104763 ...... 4 . . RETAINER, U TYPE
25.. 539 100469 ...... 1 . . HCS 5/16-18 x 1¼ TPBLT
26.. 539 101332 ...... 2 . . HCS ½-13 x 2¾
27.. 539 990074 ...... 1 . . RHSNB ¼-20 x ¾ GR2
28.. 574 822701 ...... 4 . . SCREW 10-24 x ¾ SKT HD
29.. 576 850402 ...... 2 . . SCREW 5/16-18 x 1¾ BTN HD
30.. 525 464701 .... 20 . . HHFS 5/16-18 x ¾ HEX FLG
31.. 525 612801 ...... 4 . . HHFS 3/8-16 x 1 HEX FLG
32.. 539 108010 ...... 2 . . NUT ½-13 HEX JAM NYL GR2
33.. 539 112899 .... 20 . . NUT 5/16-18 HEX FLG NYLOC
34.. 539 108120 ...... 4 . . NUT ¼-20 HEX THIN NYLOC
35.. 539 102234 ...... 1 . . NUT ¼ PUSH
36.. 539 990717 ...... 2 . . NUT 5/16-18 HEX NYLOC
37.. 539 913847 ...... 2 . . NUT 3/8 RETAINER
38.. 539 990188 ...... 3 . . WASHER 5/16 SAE FLAT
39.. 539 990187 ...... 2 . . WASHER 5/16 SLW
NOT SHOWN
510 093601 ...... 1 . . HARNESS, MAIN WIRING

10
IGNITION SYSTEM
6
7
8
5
9
16
15
17
14
13
11
1
2
3
10
33
31
44
32
22
46
26
4
20
18
19
24
23 25
34
35
37
38
29
30
36
12
21
27
45
40
40
45
41
28
43
39
42